src/autofit/hbshim.c


Log

Author Commit Date CI Message
Alexei Podtelezhnikov 237c0abf 2014-11-19T22:10:29 Trailing space.
Werner Lemberg d7f45943 2014-05-13T15:33:11 [autofit] Fix comment.
Werner Lemberg abb3fcac 2014-04-25T22:13:32 * src/autofit/hbshim.c: Partially revert commit from 2014-04-17. Using input glyph coverage data is simply wrong. Problem reported by Nikolaus Waxweiler <madigens@gmail.com> and Mantas Mikulėnas <grawity@gmail.com>.
Werner Lemberg 8c7fb78b 2014-04-17T15:53:25 [autofit] More coverage fixes for complex scripts. * src/autofit/hbshim.c (af_get_coverage): Merge input glyph coverage of GSUB lookups into output coverage. Otherwise, ligatures are not handled properly. Don't check blue zone characters for default coverage.
Werner Lemberg 8b1f2a6c 2014-04-14T07:58:19 [autofit] Improve coverage handling. * src/autofit/hbshim.c (af_get_coverage): Don't exclude glyphs appearing in the GPOS table if we are processing the default coverage.
Werner Lemberg 23367ff9 2014-03-17T07:33:14 Fix Savannah bug #41869. This works around a problem with HarfBuzz (<= 0.9.26), which doesn't validate glyph indices returned by `hb_ot_layout_lookup_collect_glyphs'. * src/autofit/hbshim.c (af_get_coverage): Guard `idx'. * docs/CHANGES: Updated.
Werner Lemberg 05565366 2014-03-06T18:56:58 Fixes for compilation with C++. * src/autofit/hbshim.c (scripts): Change type to `hb_script_t'. (af_get_coverage): Updated. (COVERAGE): Add cast.
suzuki toshiya 91c7a97b 2014-02-17T16:38:31 [autofit] Fix `make multi' compilation. * src/hbshim.c: Include `afglobal.h' and `aftypes.h'.
Werner Lemberg a3364001 2014-01-26T09:45:23 [autofit] Introduce two more slots for standard characters. This is useful for OpenType features like `c2sc' (caps to small caps) that don't have lowercase letters by definition, or other features that mainly operate on numerals. * src/autofit/afscript.h: Add more standard characters. * src/autofit/aftypes.h: Update use of `SCRIPT' macro. (AF_ScriptClassRec): Add members to hold two more standard characters. (AF_DEFINE_SCRIPT_CLASS): Updated. * src/autofit/afglobal.c, src/autofit/afglobal.h, * src/autofit/afpic.c, src/autofit/afranges.h, src/autofit/hbshim.c: Update use of `SCRIPT' macro. * src/autofit/afcjk.c (af_cjk_metrics_init_widths), src/autofit/aflatin.c (af_latin_metrics_init_widths): Scan two more standard characters.
Werner Lemberg ff8dc315 2014-01-22T09:19:57 * src/autofit/hbshim.c (af_get_coverage): Fix memory leaks.
Werner Lemberg 2b623fe4 2014-01-15T09:46:23 Minor doc issues.
Werner Lemberg ecdb0e35 2014-01-03T20:49:31 [autofit] Thinko. * src/autofit/hbshim.c (af_get_char_index): Similar to `af_get_coverage', reject glyphs which are not substituted.
Werner Lemberg 1b5bc897 2014-01-03T18:33:24 [autofit] Fix handling of default coverages. With this commit, the implementation of coverage handling is completed. * src/autofit/hbshim.c (af_get_coverage): Exit early if nothing to do. Reject coverages which don't contain appropriate glyphs for blue zones.
Werner Lemberg f45749b0 2014-01-03T18:09:36 [autofit] Fix scaling of HarfBuzz shaping. * src/autofit/hbshim.c (af_get_char_index): Scale to units per EM.
Werner Lemberg abb2f730 2014-01-01T08:00:16 [autofit] Fix style assignments to glyphs. * src/autofit/hbshim.c (af_get_coverage) [FT_CONFIG_OPTION_USE_HARFBUZZ]: Scan GPOS coverage of features also so that we can skip glyphs that have both GSUB and GPOS data.
Werner Lemberg 0950f3a5 2014-01-01T07:48:20 * src/autofit/hbshim.c: s/{lookups,glyphs}/gsub_{lookups,glyphs}/.
Werner Lemberg 73cc8330 2014-01-01T07:10:36 [autofit] Implement and use `af_get_char_index' with HarfBuzz. * src/autofit/hbshim.c (COVERAGE) [FT_CONFIG_OPTION_USE_HARFBUZZ]: Redefine to construct HarfBuzz features. (af_get_char_index) [FT_CONFIG_OPTION_USE_HARFBUZZ]: Rewritten. * src/autofit/aflatin.c (af_latin_metrics_init_blues): Use `y_offset' to adjust `best_y'.
Werner Lemberg c9d9947c 2013-12-31T08:16:57 [autofit] Fix interface of `af_get_char_index'. * src/autofit/hbshim.c (af_get_char_index): Return error value. Add argument for y offset (to be used in a yet-to-come patch). * src/autofit/hbshim.h, src/autofit/afcjk.c, src/autofit/aflatin.c: Updated.
Werner Lemberg 44aa7e0a 2013-12-30T07:41:22 [autofit] Don't combine multiple features into one set. Combining them, as originally envisioned, would lead to much more complicated code, as investigations have shown meanwhile. The major drawback is that we run out of available style slots much earlier. However, this is only a theoretical issue since we don't support a large number of scripts currently. * src/autofit/afcover.h: Replace `COVERAGE_{1,2,3}' macros with a single-element `COVERAGE' macro, sort the elements by the feature tags, and add entry for `ruby'. * src/autofit/aftypes.h: Updated. * src/autofit/hbshim.c: Updated.
Werner Lemberg 072dc45d 2013-12-28T12:26:21 [autofit] Code shuffling to reduce use of cpp macros. * src/autofit/afglobal.c (af_face_globals_compute_style_coverage): Call `af_get_coverage' unconditionally. * src/autofit/autofit.c: Include `hbshim.c' unconditionally. * src/autofit/hbshim.c (af_get_coverage) [!FT_CONFIG_OPTION_USE_HARFBUZZ]: Provide dummy function. * src/autofit/hbshim.h: Provide function declarations unconditionally.
Werner Lemberg 17af586e 2013-12-28T10:33:01 [autofit] Add wrapper function for `FT_Get_Char_Index'. Yet-to-come changes will provide HarfBuzz functionality for the new function. * src/autofit/hbshim.c (af_get_char_index): New function. * src/autofit/hbshim.h: Updated. * src/autofit/afcjk.c (af_cjk_metrics_init_widths, af_cjk_metrics_init_blues, af_cjk_metrics_check_digits): Updated. * src/autofit/aflatin.c (af_latin_metrics_init_widths, af_latin_metrics_init_blues, af_latin_metrics_check_digits): Updated.
Werner Lemberg 6af01a04 2013-12-28T08:55:24 [autofit] Use `global' HarfBuzz font object. We now use `hb_font' instead of `hb_face' since yet-to-come changes need this. * src/autofit/afglobal.h: Include `hbshim.h'. (AF_FaceGlobalsRec) [FT_CONFIG_OPTION_USE_HARFBUZZ]: New member `hb_font'. * src/autofit/afglobal.c (af_face_globals_new) [FT_CONFIG_OPTION_USE_HARFBUZZ]: Create `hb_font'. (af_face_globals_free) [FT_CONFIG_OPTION_USE_HARFBUZZ]: Destroy `hb_font'. * src/autofit/hbshim.h: Include HarfBuzz headers. * src/autofit/hbshim.c: Include `hbshim.h' instead of HarfBuzz headers. (af_get_coverage): Updated.
Werner Lemberg d32a7d32 2013-12-27T19:26:04 [autofit] Handle `DFLT' OpenType script for coverages. * include/ftautoh.h: Document new `default-script' property. * src/autofit/hbshim.c (af_get_coverage): Use `AF_FaceGlobals' for type of first parameter. (script_tags): Add one more element. (af_get_coverage): Adjust `script_tags' to handle `DFLT' script tag. * src/autofit/hbshim.h: Updated. * src/autofit/afglobal.c (af_face_globals_compute_style_coverage): Updated. * src/autofit/afglobal.h (AF_SCRIPT_DEFAULT): New macro. * src/autofit/afmodule.h (AF_ModuleRec): New `default_script' member. * src/autofit/afmodule.c (af_property_set, af_property_get): Handle `default-script' property. (af_autofitter_init): Updated.
Werner Lemberg 19241347 2013-12-21T21:31:38 Introduce `coverages'. Coverages are the interface to the HarfBuzz library to access OpenType features for handling glyphs not addressable by the cmap. Right now, compilation of HarfBuzz is only added to the development build. A solution for standard build mode will be delayed until HarfBuzz gets split into two libraries to avoid mutual dependencies between FreeType and HarfBuzz. Note that this is only a first step in handling coverages, basically providing the framework only. Code for handling selected OpenType features (this is, actually using the data in `afcover.h') will follow. * devel/ftoption.h, include/config/ftoption.h (FT_CONFIG_OPTION_USE_HARFBUZZ): New macro. * src/autofit/hbshim.c, src/autofit/hbshim.h, src/autofit/afcover.h: New files. * src/autofit/afscript.h: Add HarfBuzz script name tags. * src/autofit/afstyles.h: Add default coverage enumeration values. * src/autofit/aftypes.h: Update use of `SCRIPT' and `STYLE' macros. (AF_Coverage): New enumeration (generated by `afcover.h'). (AF_StyleClassRec): New member `coverage'. (AF_DEFINE_STYLE_CLASS): Updated. * include/internal/fttrace.h: Add `afharfbuzz' for tracing coverage data. * src/autofit/afglobal.h: Update use of `SCRIPT' and `STYLE' macros. (AF_SCRIPT_FALLBACK): Renamed to ... (AF_STYLE_FALLBACK): ... this. * src/autofit/afglobal.c: Include `hbshim.c'. Update use of `SCRIPT' and `STYLE' macros. (af_face_globals_compute_style_coverage) [FT_CONFIG_OPTION_USE_HARFBUZZ]: Call `af_get_coverage'. Update. * src/autofit/afmodule.h (AF_ModuleRec): s/fallback_script/fallback_style/. * src/autofit/afmodule.c (af_property_set): Adapt handling of `fallback-script' property to set a fallback style. (af_property_get, af_autofitter_init): Updated. * src/autofit/afpic.c: Update use of `SCRIPT' and `STYLE' macros. * src/autofit/afranges.h: Update use of `SCRIPT' macro. * src/autofit/autofit.c [FT_CONFIG_OPTION_USE_HARFBUZZ]: Include `hbshim.c'. * src/autofit/rules.mk (AUTOF_DRV_SRC): Add `hbshim.c'. (AUTOF_DRV_H): Add `afcover.h'. * builds/freetype.mk (INCLUDE_FLAGS) [DEVEL_DIR]: Use pkg-config for all libraries needed by FreeType.